Re: [aqm] Status of the GSP AQM?

Michael Welzl <> Fri, 15 December 2017 07:26 UTC

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From: Michael Welzl <>
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Date: Fri, 15 Dec 2017 08:26:55 +0100
Cc: Roland Bless <>, "" <>, "LAUTENSCHLAEGER, Wolfram (Wolfram)" <>
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To: Wesley Eddy <>
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Subject: Re: [aqm] Status of the GSP AQM?
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> On Dec 14, 2017, at 10:59 PM, Wesley Eddy <> wrote:
> On 12/14/2017 4:35 PM, Roland Bless wrote:
>> Hi folks,
>> I was wondering what happened to the GSP AQM proposal
>> (draft-lauten-aqm-gsp see
>> (
>> Discussion seems to have ended after IETF 93 and we probably
>> missed the point of discussing WG adoption.
>> IMHO this AQM should also be documented as RFC. It performs extremely
>> well in some settings (better than CoDel or PIE) and its implementation
>> complexity is also lower. Wolfram, are you interested in finishing this?
>> Should we continue in tsvwg?
> I mentioned GSP as a possible work item, back when we were discussing rechartering, but apparently it was not compelling to the group at that time.
> When we did the AQM algorithm adoption call ~2014, GSP appeared to be basically viable technically, but there wasn't evidence that multiple parties were interested in working with it enough to go forward (not just working the document, but implementing, simulating, testing, analyzing, deploying, etc).   There is a thread in the archives with subject "[aqm] adoption call: algorithm drafts”.

I agree, I also remember lack of activity / interest, but I would like to encourage people to at least take a look at this.
In my opinion, it was an extremely interesting proposal, and I felt I learned something new from listening to Wolfram  (I had become conditioned to believe that removing synchronization requires randomness).